[67252] in North American Network Operators' Group

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Re: Are SW upgrades needed in MPLS core networks?

daemon@ATHENA.MIT.EDU (Randy Bush)
Fri Feb 6 13:53:32 2004

From: Randy Bush <randy@psg.com>
To: "Rubens Kuhl Jr." <rubens@email.com>
Cc: nanog@nanog.org
Date: Fri,  6 Feb 2004 13:45:51 -0500 (EST)
Errors-To: owner-nanog-outgoing@merit.edu


> I don't get why Juniper and Cisco trie-lookup forwarding would differ in
> comparing IPv4 and IPv6; Juniper does a 8+1+1+1+1+... search until a leaf
> node is found, while Cisco does 16+8+8 (or something near it but still with
> 3 phases); for both architetures, IPv6 longer addresses implies walking more
> deeply into the tree in order to find where to route.

ahhh.  you have been watching marketing architecture presentations.

otoh, we have been using real routers.

randy


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